From 7f0859f446c417dd0a98dba2bb5e4f06be5a4c91 Mon Sep 17 00:00:00 2001
From: Claus Dethlefsen <claus.dethlefsen@gmail.com>
Date: Tue, 24 Mar 2026 18:25:18 +0100
Subject: [PATCH] tesla

---
 include/templates/tesla_charge_plan.yaml | 41 ++++++++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 include/templates/tesla_charge_plan.yaml

diff --git a/include/templates/tesla_charge_plan.yaml b/include/templates/tesla_charge_plan.yaml
new file mode 100644
index 0000000..ebbd4e1
--- /dev/null
+++ b/include/templates/tesla_charge_plan.yaml
@@ -0,0 +1,41 @@
+- binary_sensor:
+    - name: tesla_charge_now
+      state: >
+        {% set deadline_raw = states('input_datetime.tesla_charge_deadline') %}
+        {% set deadline_ts = as_timestamp(deadline_raw) if deadline_raw not in ['unknown','unavailable',''] else none %}
+
+        {% set hours_needed = states('sensor.tesla_charge_hours_needed') | float(0) | round(0, 'ceil') %}
+
+        {% set prices = (state_attr('sensor.energidataservice','today') or [])
+                        + (state_attr('sensor.energidataservice','tomorrow') or []) %}
+
+        {# Filter gyldige slots før deadline #}
+        {% set valid = [] %}
+        {% for p in prices %}
+          {% if p.hour %}
+            {% set ts = as_timestamp(p.hour) %}
+            {% if not deadline_ts or ts <= deadline_ts %}
+              {% set valid = valid + [p] %}
+            {% endif %}
+          {% endif %}
+        {% endfor %}
+
+        {# Sortér kronologisk #}
+        {% set valid = valid | sort(attribute='hour') %}
+
+        {# Find billigste sammenhængende blok #}
+        {% set best_block = [] %}
+        {% set best_price = 999 %}
+
+        {% for i in range(0, (valid | length) - hours_needed + 1) %}
+          {% set block = valid[i:i+hours_needed] %}
+          {% set total = block | map(attribute='price') | sum %}
+          {% if total < best_price %}
+            {% set best_price = total %}
+            {% set best_block = block %}
+          {% endif %}
+        {% endfor %}
+
+        {% set now_slot = now().replace(minute=0, second=0, microsecond=0).isoformat() %}
+
+        {{ best_block | selectattr('hour','equalto',now_slot) | list | count > 0 }}